Keith Lilley is Reader in Historical Geography at Queen's University Belfast. His research focuses on spaces, places and landscapes of the European Middle Ages. He has published essays and articles across different disciplines, and is the author of two other books, Urban Life in the Middle Ages (2002) and City and Cosmos: The Medieval World in Urban Form (2009). He is a Fellow of the Royal Historical Society and has directed numerous funded research projects in the field of digital humanities, including a project on the UNESCO-recognised fourteenth-century map of Great Britain known as the Gough Map. In this and other projects he has developed the use of spatial technologies to further understand the medieval past. For more than twenty years he has taught geography at undergraduate and postgraduate levels at a number of UK universities, including the University of London, the University of Birmingham and University of Cambridge. At Queen's University Belfast he is director of a postgraduate programme on 'Heritage Science'. Through his work he has addressed conferences and delivered seminars across Europe and in North America, Japan and Australia.